The study aims to compare the readings from two methods of monitoring carbon dioxide levels during jet ventilation when normal end-tidal monitoring is not possible. During jet ventilation it is technically not possible to monitor the levels of carbon dioxide in exhaled air as is the standard in preoperative care. We will compare transcutaneous (through the skin) monitoring to an arterial blood. sample. Both transcutaneous monitoring and arterial monitoring is currently used as the standard for this patient group at our institution. By collecting data prospectively we can evaluate if there. are discrepancies based on monitoring method. All patients will be treated per standard preoperative protocol and only patients consenting to participate will contribute data to the comparison and statistical analysis.
Age range
18 Years
Sex
ALL
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Difference in CO2 between TcCO2 and PaCO2
Timeframe: during perioperative management